anything is possible 
you could remove the URL completely from the stats page, or create a plugin to display only the domain name.
make a plugin with the following filename: stats_build_page.php
	
	
	
		PHP:
	
	
		$TMPL['karls_url'] =  parse_url($TMPL['url'], PHP_URL_HOST);
	 
 then in your stats template replace:
	
	
	
		Code:
	
	
		        <a href="{$url}" onclick="out(this,'{$username}');" rel="nofollow">{$url}</a>
	 
 with
	
	
	
		Code:
	
	
		        <a href="{$url}" onclick="out(this,'{$username}');" rel="nofollow">{$karls_url}</a>
	 
 and that should do it 

 untested code, so let me know if you have any troubles.